Baritone Thomas Hampson talks about some magnificent but obscure songs by Richard Strauss that he'll sing with the PSO on the season's opening weekend. Hampson also talks about his concert with the Israel Philharmonic at Salzburg, and his forays into the world of Twitter and iPad apps, including golf and news apps -- as well as the Thomas Hampson app. With the fall season ahead, he talks about sensible tips to avoid colds and keep his voice healthy.